While promoting ASM instance in oracle 12c Cloud using asmsnmp user, you might get error like

Failed to connect to the ASM: ORA-01017: invalid username/password; login denied The Connect Descriptor was (DESCRIPTION=(ADDRESS_LIST = (ADDRESS=(PROTOCOL=tcp)(HOST=rachost1)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=+ASM1)(INSTANCE_NAME=+ASM1)(UR=A)(SERVER=DEDICATED)))

Solution:

We need to reset the password for asmsnmp user.

ASMCMD> lspwusr
Username sysdba sysoper sysasm
     SYS   TRUE    TRUE   TRUE
ASMSNMP   TRUE   FALSE  FALSE
ASMCMD> orapwusr --modify asmsnmp
Enter password: ********
ASMCMD>

Now try to promote the asm instance, using the password of asmsnmp which we set from the asmcmd prompt.

SEE ALSO:

• Step by step – Setup Oracle Rac on virtual box 
• How to create RAC database Manually 
• Steps to Change RAC database name using nid 
• Steps to Convert Non-asm instance to ASM instance
• Steps to move voting disk to another diskgroup:
• Steps to Apply PSU patch on Oracle 12c RAC ( in Solaris)
• Steps to Apply JVM patch on Oracle 12c Rac 
• Multiplex controlfile in Oracle RAC 12c
• Enable archivelog mode in Oracle RAC
• Upgrade Grid infrastructure from 11g to 12C
• Drop database in Oracle Rac 
• Rename ASM diskgroup in RAC 
• Move asm file from one server to another server
• Move Datafile From File System To ASM Disk In 11g
• How to change scan listener port
• RMAN active cloning from RAC TO RAC
• Asmcmd new features in oracle 12c
• Install grid infrastructure 12c on standalone server